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PROTO - circuit simulator

Build, simulate and learn about electronic circuits with PROTO circuit simulator

Free

Get
4.728 reviews1,000,000+ installsRated for 3+PROTO
13,146 RATINGS
4.7
★★★★★
AGES
Rated for 3+
 
CATEGORY
Education
DEVELOPER
PROTO
INSTALLS
1M+
Downloads
UPDATED
Mar 22, 2026
Last updated
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Are you looking for tools like Multisim, SPICE, LTspice, Proteus, Altium or PhET simulations? That's great! PROTO is an real time electronic circuit simulator which means you are able to setup a circuit with various components and simulate behaviour of the electronic circuit ⚡ During simulation you can check voltages, currents and many other variables. Check signals on multichannel oscilioscope and tune your circuit in real time! Our app can greatly help with your Raspberry Pi, Arduino or ESP32 project. You can also use PROTO as logic circuit simulator and perform digital electronic analysis! ℹ️ You can report an issue or make component request at Github 👉 Features: ✅ Animations of voltage values and current flows ✅ Adjusts circuit parameters (like voltage, current and other) ✅ Four-channel oscilloscope ✅ Single play/pause button to control simulation ✅ Copy electronic components ✅ Learn about electronic circuits by examples in app ✅ Share circuit with friends ✅ Themes (Dark, Light, Ocean, Solarized) ✅ PNG, JPG, PDF circuit export ✅ Export workspace ✅ Video tutorials about electronics 🔥 Arduino support in future 👉 Components: + DC, AC, Square, Trinagle, Sawtooth, Pulse, Noise voltage source + Current source + Resistor + Potentiometer + Capacitor + Polarized capacitor + Inductor + Transformer + Diode (rectifying diode, LED, Zener, Schottky) + Transistor (NPN, PNP, N and P channel Mosfet) + Switches (SPST, Relay) + Bulb + Operational amplifier + Timer 555 (NE555) + Digital Gates (AND, NAND, OR, XOR, NOR, NXOR, Inverter) + Voltmeter + Ammeter + Fuse + Photoresistor (uses phone light sensor) + Analog-to-digital converter (ADC) + Accelerometer (uses phone accelerometer sensor) + FM source + Logic Input + Memristor + Logic output + Probe + Voltage rail 👉 Analog Pack: + Tunnel diode + Varactor + NTC Thermistor + Center tapped transformer + Schmitt trigger + Schmitt trigger (inverting) + Solar cell + TRIAC + DIAC + Thyristor + Triode + Darlington NPN + Darlington PNP + Analog SPST + Analog SPDT Digital Pack: + Adder + Counter + Latch + PISO Register + SIPO Register + Seven segment decoder + Sequence generator + D Flip-flop + T Flip-flop + JK Flip-flop + Multiplexer + Demultiplexer + Voltage controlled current source (VCCS) + Voltage controlled voltage source (VCVS) + Current controlled current source (CCCS) + Current controlled voltage source (CCVS) + Optocoupler 👉 Misc Pack: + Wobbulator + AM Source + SPDT Switch + Digital to analog converter (DAC) + Antenna + Spark gap + LED Bar + 7 segment LED + RGB LED + Ohmmeter + Audio input + Microphone + Device battery + DC Motor + 14 segment LED + Diode bridge + Crystal + Voltage regulators (78xx family) + TL431 + Buzzer + Frequency meter 👉 JavaScrip Pack: + Write code + JavaScript interpreter (ES2020 class) + Access to IC inputs in code + Access to IC outputs in code + Four custom ICs 👉 7400 TTL Pack: + 7404 - hex inverter + 7410 - triple 3-input NAND Gate + 7414 - hex Schmitt-trigger inverter + 7432 - quadruple 2-input OR gate + 7440 - dual 4-input NAND buffer + 7485 - 4-bit magnitude comparator + 7493 - binary counter + 744075 - triple 3-input OR gate + 741G32 - single 2-input OR gate + 741G86 - single 2-input XOR gate 👉 4000 CMOS Pack: + 4000 - dual 3-input NOR gate and inverter. + 4001 - quad 2-input NOR gate. + 4002 - dual 4-input NOR gate. + 4011 - quad 2-input NAND gate. + 4016 - quad bilateral switch. + 4017 - 5-stage Johnson decade counter. + 4023 - triple 3-input NAND gate. + 4025 - triple 3-input NOR gate. + 4081 - quad 2-input AND gate. + 4511 - BCD to 7-segment decoder. 👉 Sensors pack: + Pressure + Gyroscope + Light + Magnetic field + Proximity + Temperature + Humidity

Video

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Details may also appear on Google Play.

Information

Developer
PROTO
Developer Email
proto.playstore@gmail.com
Website
protosimulator.com
Version
1.48.0
Minimum OS
Android 6.0
Content rating
Rated for 3+
Category
Education
Store rating
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Ratings & Reviews

4.7

out of 5

★★★★★
★★★★★
★★★★★
★★★★★
★★★★★

13,146 Ratings

The developer, PROTO, indicated that the app's privacy practices may include handling of data as described on Google Play. For more information, see the developer's privacy policy.

Privacy practices may vary, for example, based on the features you use or your age. Learn more

Privacy details and official information are on the Google Play store page. This site is not the official Google Play store. Learn more

4.7
Reviews
28
Install range (approx.)
1,000,000+ – 3,521,086
Price
Free
Free
Yes
In-app purchases
No
Contains ads
No
Released
Oct 25, 2021
Updated on Play
March 22, 2026
Android (max)
VARY
Play genre ID
EDUCATION
Developer Website ↗Privacy Policy ↗